Mason s hawk



(No Model.) 1 1 G. W. BLAY. MASON'S HAWK.

No. 483,132. Patented Sept. 27, 1892.

' UNITED STATES PATENT. GFFICE.

CHARLES lV. BLAY, OF JANESVILLE, XVISCONSIN.

MASONS HAWK.

SPECIFICATION forming part of Letters Patent No. 483,132, datedSeptember 27, 1892.

Application filed January 16, 1892. Serial No. 418,288. (No model.)

To all whom it may concern.-

Be it known that 1, CHARLES W. BLAY, of J anesville, in the county ofRock and State of WVisconsin, have invented certain new and usefulImprovements in Masons Hawks; and

I do hereby declare the following to be a full,

clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

My invention relates to an improvement in masons hawks, the object beingto provide a hawk whose top surface will be free from obstructions,always presenting a smooth working surface.

A further object is to provide means to prevent the warping of the uppersurface of the hawk.

With these ends in view my invention consisis in the parts andcombination of parts, as will be more fully described, and pointed outin the claims.

In the accompanying drawings, Figure l is a sectional view of myimproved hawk, and Fig. 2 is a bottom plan view of the same. Fig. 3 is aplan of the metal wedge.

A represents a table or hawk proper, made of the desired thickness andprovided centrally with a square countersink or recess, as shown at a,said countersink or recess being of sufficient width and depth toreceive the nut b, so that it will be rigidly held in place and at thesame time flush with the under surface of the hawk. The under side ofthe hawk or table is provided with two oblique saw-kerfs or grooves c,which latter start at points (I, located at one side of the hawk ortable and grad ually converge as they approach the opposite end of thehawk or table. The depth of the cuts will of course depend on thethickness of the hawk or table. The metal wedge B is made to conform tothe shape of the space between the oblique sawkerfs or grooves, and isprovided with flanged sides, which latter fit into the oblique sawkerfsor grooves c. The handle D is provided centrally with a vertical bore e,through which passes a bolt f, which latter also passes through anopening h, formed in the metal wedge B. The handle D is provided at itsouter end with a recess or cavity g, greater in diameter than the bore 2and forming a continuation thereof for the reception of the head of thebolt f. The lower end of the bolt f is provided with screw-threads,which engage the screw-threads in the nut b for the purpose 5 5 oflocking the parts in position.

The parts are assembled in the following manner: The nut b is firstplaced within the opening a. The metal wedge, which is cut away at eachend, as shown in the drawings, is then sprung into the oblique saw-kerfsor grooves c, which latter when in position held. the nut 1) againstdisplacement. By cutting away a portion of the metal from each end ofthe Wedge B the same can more readily be sprung into the saw-kerfs thancould be accomplished if the cut-away portions were retained. The bolt fis then passed through the opening or bore e in the handle, thencethrough the hole 7L in the wedge, and the former is then secured inplace by screwing the bolt f in the nut b, and when the parts are in thepositions as above set forth the handle and table are rigidly heldtogether.

The application of the invention is not confined to masons hawks, but isequally applicable to darbies, floats, and to the bottom of tubs.

As it is evident that my invention is susceptible to many forms ofsecuring the han- 8o dle to the hawk or table, I would have itunderstood that I do not restrict myself to the particular constructionand arrangement of parts shown and described; but,

Having fully described my inventiou,what I claim as new, and desire tosecure by Letters Patent, is-

r 1. The combination, with a table or other surface provided withconverging kerfs or grooves, of a flanged metal wedge the flanges ofwhich are adapted to fit in said kerfs or grooves, substantially as setforth.

2. The combination, with a table or other surface provided withconverging kerfs or grooves, of a flanged metal wedge the flanges 9 5 ofwhich are adapted to fit in said kerfs or grooves and a handle securedto said table or other surface, substantially as set forth.

3. In a masons hawk,the combination, with a table having acentrally-located recess on its under side, said table being providedwith In testimony whereof I have signed this converging kerfs orgrooves, and a nut 10- specification in the presence of two subscrib:cated in said recess, of a flanged metal wedge ing witnesses.

the flanges of which are adapted to fit in said CHARLES W. BLAY. 5 kerfsor grooves, a handle, and a bolt pass- Witnesses:

ing through the handle and engaging the nut, FRANK N. WEBSTER,

substantially as set forth. JOSEPH LoEB.

